[Live-devel] Server doesn't interleave reads from pipe and sending packets?

[Cristiano Belloni]

Ross Finlayson wrote:
> First, you should make sure that if the same data is stored in a 
> regular file - rather than on a FIFO - then you can stream it OK. 
> This will help ensure that you don't have problems with bad 
> timestamps in your data.
>   
I can.
> Second, when you read from a FIFO, you must make sure that reads from 
> the FIFO are *asynchronous* - i.e., non-blocking, and handled within 
> the event loop.
The library handles this: The server is very simple:

TaskScheduler* scheduler = BasicTaskScheduler::createNew();
env = BasicUsageEnvironment::createNew(*scheduler);

RTSPServer* rtspServer = RTSPServer::createNew(*env, 554, authDB, 45);

[..]
  
H263plusVideoFileServerMediaSubsession* mss = 
H263plusVideoFileServerMediaSubsession::createNew(*env, inputFileName, 
reuseFirstSource);
   
sms->addSubsession(mss);
   
rtspServer->addServerMediaSession(sms);

  }

 env->taskScheduler().doEventLoop();

I omitted the variable initizations; inputFileName is obviously filename 
of the FIFO. And, yes, I set reuseFirstSource to true.
>  If the read end of your FIFO - as seen from your 
> server - is a normal open file, then this should happen 
> automatically, *unless* you are running Windows.  (Windows is 
> brain-damaged, and doesn't always treat open files as being 
> select()able sockets, so reads on open files in Windows are 
> synchronous by default.)
>   
Nope, I'm running Linux.
> Apart from this, because you're working with your own custom code, 
> there's not a whole lot more I can suggest.
>   
Do you see any errors in the server code I posted?

Thanks,

Cristiano.

-- 
Belloni Cristiano
Imavis Srl.
www.imavis.com <http://www.imavis.com>
belloni at imavis.com <mailto://belloni@imavis.com>